| /* Save current context. |
| Copyright (C) 2012-2014 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <sysdep.h> |
| |
| #include "ucontext_i.h" |
| |
| |
| ENTRY(__getcontext) |
| /* Load address of the context data structure. */ |
| move.l 4(%sp), %a0 |
| |
| /* Save the preserved registers and the return address. */ |
| movem.l %d2-%d7, oGREGS+2*4(%a0) |
| movem.l %a2-%a6, oGREGS+10*4(%a0) |
| lea 4(%sp), %a1 |
| move.l %a1, oSP(%a0) |
| move.l (%sp), oPC(%a0) |
| fmovem.l %fpsr/%fpcr/%fpiar, oFPREGS(%a0) |
| fmovem.x %fp2-%fp7, oFP2(%a0) |
| cfi_def_cfa (%a0, 0) |
| cfi_offset (%d2, oGREGS+2*4) |
| cfi_offset (%d3, oGREGS+3*4) |
| cfi_offset (%pc, oPC) |
| |
| /* Save the current signal mask. */ |
| lea oSIGMASK(%a0), %a1 |
| move.l %a1, %d3 |
| clr.l %d2 |
| move.l #SIG_SETMASK, %d1 |
| move.l #__NR_sigprocmask, %d0 |
| trap #0 |
| /* Restore registers. */ |
| move.l oGREGS+2*4(%a0), %d2 |
| cfi_restore (%d2) |
| move.l oGREGS+3*4(%a0), %d3 |
| cfi_restore (%d3) |
| cfi_def_cfa (%sp, 4) |
| cfi_offset (%pc, -4) |
| cmp.l #-4095, %d0 /* Check %d0 for error. */ |
| jcc SYSCALL_ERROR_LABEL /* Jump to error handler. */ |
| |
| 0: /* All done, return 0 for success. */ |
| clr.l %d0 |
| rts |
| PSEUDO_END(__getcontext) |
| |
| weak_alias (__getcontext, getcontext) |
